Question: What is the mineral resource that starts with the letter 'p'?
Paraphrase: WHICH IS THE MINERAL RESOURCE THAT STARTS WITH THE LETTER C
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q889659 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'p')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: petroleum, petroleum